bootinfo.h

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/*
** asm/bootinfo.h -- Definition of the Linux/m68k boot information structure
**
** Copyright 1992 by Greg Harp
**
** This file is subject to the terms and conditions of the GNU General Public
** License.  See the file COPYING in the main directory of this archive
** for more details.
**
** Created 09/29/92 by Greg Harp
**
** 5/2/94 Roman Hodek:
**   Added bi_atari part of the machine dependent union bi_un; for now it
**   contains just a model field to distinguish between TT and Falcon.
** 26/7/96 Roman Zippel:
**   Renamed to setup.h; added some useful macros to allow gcc some
**   optimizations if possible.
** 5/10/96 Geert Uytterhoeven:
**   Redesign of the boot information structure; renamed to bootinfo.h again
** 27/11/96 Geert Uytterhoeven:
**   Backwards compatibility with bootinfo interface version 1.0
*/

#ifndef _M68K_BOOTINFO_H
#define _M68K_BOOTINFO_H


    /*
     *  Bootinfo definitions
     *
     *  This is an easily parsable and extendable structure containing all
     *  information to be passed from the bootstrap to the kernel.
     *
     *  This way I hope to keep all future changes back/forewards compatible.
     *  Thus, keep your fingers crossed...
     *
     *  This structure is copied right after the kernel bss by the bootstrap
     *  routine.
     */

#ifndef __ASSEMBLY__

struct bi_record {
    unsigned short tag;         /* tag ID */
    unsigned short size;        /* size of record (in bytes) */
    unsigned long data[0];      /* data */
};

#endif /* __ASSEMBLY__ */


    /*
     *  Tag Definitions
     *
     *  Machine independent tags start counting from 0x0000
     *  Machine dependent tags start counting from 0x8000
     */

#define BI_LAST         0x0000  /* last record (sentinel) */
#define BI_MACHTYPE     0x0001  /* machine type (u_long) */
#define BI_CPUTYPE      0x0002  /* cpu type (u_long) */
#define BI_FPUTYPE      0x0003  /* fpu type (u_long) */
#define BI_MMUTYPE      0x0004  /* mmu type (u_long) */
#define BI_MEMCHUNK     0x0005  /* memory chunk address and size */
                    /* (struct mem_info) */
#define BI_RAMDISK      0x0006  /* ramdisk address and size */
                    /* (struct mem_info) */
#define BI_COMMAND_LINE     0x0007  /* kernel command line parameters */
                    /* (string) */

    /*
     *  Amiga-specific tags
     */

#define BI_AMIGA_MODEL      0x8000  /* model (u_long) */
#define BI_AMIGA_AUTOCON    0x8001  /* AutoConfig device */
                    /* (struct ConfigDev) */
#define BI_AMIGA_CHIP_SIZE  0x8002  /* size of Chip RAM (u_long) */
#define BI_AMIGA_VBLANK     0x8003  /* VBLANK frequency (u_char) */
#define BI_AMIGA_PSFREQ     0x8004  /* power supply frequency (u_char) */
#define BI_AMIGA_ECLOCK     0x8005  /* EClock frequency (u_long) */
#define BI_AMIGA_CHIPSET    0x8006  /* native chipset present (u_long) */
#define BI_AMIGA_SERPER     0x8007  /* serial port period (u_short) */

    /*
     *  Atari-specific tags
     */

#define BI_ATARI_MCH_COOKIE 0x8000  /* _MCH cookie from TOS (u_long) */
#define BI_ATARI_MCH_TYPE   0x8001  /* special machine type (u_long) */
                    /* (values are ATARI_MACH_* defines */

/* mch_cookie values (upper word) */
#define ATARI_MCH_ST        0
#define ATARI_MCH_STE       1
#define ATARI_MCH_TT        2
#define ATARI_MCH_FALCON    3

/* mch_type values */
#define ATARI_MACH_NORMAL   0   /* no special machine type */
#define ATARI_MACH_MEDUSA   1   /* Medusa 040 */
#define ATARI_MACH_HADES    2   /* Hades 040 or 060 */
#define ATARI_MACH_AB40     3   /* Afterburner040 on Falcon */

    /*
     *  VME-specific tags
     */

#define BI_VME_TYPE     0x8000  /* VME sub-architecture (u_long) */
#define BI_VME_BRDINFO      0x8001  /* VME board information (struct) */

/* BI_VME_TYPE codes */
#define VME_TYPE_TP34V      0x0034  /* Tadpole TP34V */
#define VME_TYPE_MVME147    0x0147  /* Motorola MVME147 */
#define VME_TYPE_MVME162    0x0162  /* Motorola MVME162 */
#define VME_TYPE_MVME166    0x0166  /* Motorola MVME166 */
#define VME_TYPE_MVME167    0x0167  /* Motorola MVME167 */
#define VME_TYPE_MVME172    0x0172  /* Motorola MVME172 */
#define VME_TYPE_MVME177    0x0177  /* Motorola MVME177 */
#define VME_TYPE_BVME4000   0x4000  /* BVM Ltd. BVME4000 */
#define VME_TYPE_BVME6000   0x6000  /* BVM Ltd. BVME6000 */

/* BI_VME_BRDINFO is a 32 byte struct as returned by the Bug code on
 * Motorola VME boards.  Contains board number, Bug version, board
 * configuration options, etc.  See include/asm/mvme16xhw.h for details.
 */


    /*
     *  Macintosh-specific tags (all u_long)
     */

#define BI_MAC_MODEL        0x8000  /* Mac Gestalt ID (model type) */
#define BI_MAC_VADDR        0x8001  /* Mac video base address */
#define BI_MAC_VDEPTH       0x8002  /* Mac video depth */
#define BI_MAC_VROW     0x8003  /* Mac video rowbytes */
#define BI_MAC_VDIM     0x8004  /* Mac video dimensions */
#define BI_MAC_VLOGICAL     0x8005  /* Mac video logical base */
#define BI_MAC_SCCBASE      0x8006  /* Mac SCC base address */
#define BI_MAC_BTIME        0x8007  /* Mac boot time */
#define BI_MAC_GMTBIAS      0x8008  /* Mac GMT timezone offset */
#define BI_MAC_MEMSIZE      0x8009  /* Mac RAM size (sanity check) */
#define BI_MAC_CPUID        0x800a  /* Mac CPU type (sanity check) */
#define BI_MAC_ROMBASE      0x800b  /* Mac system ROM base address */

    /*
     *  Macintosh hardware profile data - unused, see macintosh.h for
     *  reasonable type values
     */

#define BI_MAC_VIA1BASE     0x8010  /* Mac VIA1 base address (always present) */
#define BI_MAC_VIA2BASE     0x8011  /* Mac VIA2 base address (type varies) */
#define BI_MAC_VIA2TYPE     0x8012  /* Mac VIA2 type (VIA, RBV, OSS) */
#define BI_MAC_ADBTYPE      0x8013  /* Mac ADB interface type */
#define BI_MAC_ASCBASE      0x8014  /* Mac Apple Sound Chip base address */
#define BI_MAC_SCSI5380     0x8015  /* Mac NCR 5380 SCSI (base address, multi) */
#define BI_MAC_SCSIDMA      0x8016  /* Mac SCSI DMA (base address) */
#define BI_MAC_SCSI5396     0x8017  /* Mac NCR 53C96 SCSI (base address, multi) */
#define BI_MAC_IDETYPE      0x8018  /* Mac IDE interface type */
#define BI_MAC_IDEBASE      0x8019  /* Mac IDE interface base address */
#define BI_MAC_NUBUS        0x801a  /* Mac Nubus type (none, regular, pseudo) */
#define BI_MAC_SLOTMASK     0x801b  /* Mac Nubus slots present */
#define BI_MAC_SCCTYPE      0x801c  /* Mac SCC serial type (normal, IOP) */
#define BI_MAC_ETHTYPE      0x801d  /* Mac builtin ethernet type (Sonic, MACE */
#define BI_MAC_ETHBASE      0x801e  /* Mac builtin ethernet base address */
#define BI_MAC_PMU      0x801f  /* Mac power management / poweroff hardware */
#define BI_MAC_IOP_SWIM     0x8020  /* Mac SWIM floppy IOP */
#define BI_MAC_IOP_ADB      0x8021  /* Mac ADB IOP */

    /*
     * Mac: compatibility with old booter data format (temporarily)
     * Fields unused with the new bootinfo can be deleted now; instead of
     * adding new fields the struct might be splitted into a hardware address
     * part and a hardware type part
     */

#ifndef __ASSEMBLY__

struct mac_booter_data
{
    unsigned long videoaddr;
    unsigned long videorow;
    unsigned long videodepth;
    unsigned long dimensions;
    unsigned long args;
    unsigned long boottime;
    unsigned long gmtbias;
    unsigned long bootver;
    unsigned long videological;
    unsigned long sccbase;
    unsigned long id;
    unsigned long memsize;
    unsigned long serialmf;
    unsigned long serialhsk;
    unsigned long serialgpi;
    unsigned long printmf;
    unsigned long printhsk;
    unsigned long printgpi;
    unsigned long cpuid;
    unsigned long rombase;
    unsigned long adbdelay;
    unsigned long timedbra;
};

extern struct mac_booter_data
    mac_bi_data;

#endif

    /*
     *  Apollo-specific tags
     */

#define BI_APOLLO_MODEL         0x8000  /* model (u_long) */

    /*
     *  HP300-specific tags
     */

#define BI_HP300_MODEL      0x8000  /* model (u_long) */
#define BI_HP300_UART_SCODE 0x8001  /* UART select code (u_long) */
#define BI_HP300_UART_ADDR  0x8002  /* phys. addr of UART (u_long) */

    /*
     * Stuff for bootinfo interface versioning
     *
     * At the start of kernel code, a 'struct bootversion' is located.
     * bootstrap checks for a matching version of the interface before booting
     * a kernel, to avoid user confusion if kernel and bootstrap don't work
     * together :-)
     *
     * If incompatible changes are made to the bootinfo interface, the major
     * number below should be stepped (and the minor reset to 0) for the
     * appropriate machine. If a change is backward-compatible, the minor
     * should be stepped. "Backwards-compatible" means that booting will work,
     * but certain features may not.
     */

#define BOOTINFOV_MAGIC         0x4249561A  /* 'BIV^Z' */
#define MK_BI_VERSION(major,minor)  (((major)<<16)+(minor))
#define BI_VERSION_MAJOR(v)     (((v) >> 16) & 0xffff)
#define BI_VERSION_MINOR(v)     ((v) & 0xffff)

#ifndef __ASSEMBLY__

struct bootversion {
    unsigned short branch;
    unsigned long magic;
    struct {
    unsigned long machtype;
    unsigned long version;
    } machversions[0];
};

#endif /* __ASSEMBLY__ */

#define AMIGA_BOOTI_VERSION    MK_BI_VERSION( 2, 0 )
#define ATARI_BOOTI_VERSION    MK_BI_VERSION( 2, 1 )
#define MAC_BOOTI_VERSION      MK_BI_VERSION( 2, 0 )
#define MVME147_BOOTI_VERSION  MK_BI_VERSION( 2, 0 )
#define MVME16x_BOOTI_VERSION  MK_BI_VERSION( 2, 0 )
#define BVME6000_BOOTI_VERSION MK_BI_VERSION( 2, 0 )
#define Q40_BOOTI_VERSION      MK_BI_VERSION( 2, 0 )
#define HP300_BOOTI_VERSION    MK_BI_VERSION( 2, 0 )

#ifdef BOOTINFO_COMPAT_1_0

    /*
     *  Backwards compatibility with bootinfo interface version 1.0
     */

#define COMPAT_AMIGA_BOOTI_VERSION    MK_BI_VERSION( 1, 0 )
#define COMPAT_ATARI_BOOTI_VERSION    MK_BI_VERSION( 1, 0 )
#define COMPAT_MAC_BOOTI_VERSION      MK_BI_VERSION( 1, 0 )

#include <linux/zorro.h>

#define COMPAT_NUM_AUTO    16

struct compat_bi_Amiga {
    int model;
    int num_autocon;
    struct ConfigDev autocon[COMPAT_NUM_AUTO];
    unsigned long chip_size;
    unsigned char vblank;
    unsigned char psfreq;
    unsigned long eclock;
    unsigned long chipset;
    unsigned long hw_present;
};

struct compat_bi_Atari {
    unsigned long hw_present;
    unsigned long mch_cookie;
};

#ifndef __ASSEMBLY__

struct compat_bi_Macintosh
{
    unsigned long videoaddr;
    unsigned long videorow;
    unsigned long videodepth;
    unsigned long dimensions;
    unsigned long args;
    unsigned long boottime;
    unsigned long gmtbias;
    unsigned long bootver;
    unsigned long videological;
    unsigned long sccbase;
    unsigned long id;
    unsigned long memsize;
    unsigned long serialmf;
    unsigned long serialhsk;
    unsigned long serialgpi;
    unsigned long printmf;
    unsigned long printhsk;
    unsigned long printgpi;
    unsigned long cpuid;
    unsigned long rombase;
    unsigned long adbdelay;
    unsigned long timedbra;
};

#endif

struct compat_mem_info {
    unsigned long addr;
    unsigned long size;
};

#define COMPAT_NUM_MEMINFO  4

#define COMPAT_CPUB_68020 0
#define COMPAT_CPUB_68030 1
#define COMPAT_CPUB_68040 2
#define COMPAT_CPUB_68060 3
#define COMPAT_FPUB_68881 5
#define COMPAT_FPUB_68882 6
#define COMPAT_FPUB_68040 7
#define COMPAT_FPUB_68060 8

#define COMPAT_CPU_68020    (1<<COMPAT_CPUB_68020)
#define COMPAT_CPU_68030    (1<<COMPAT_CPUB_68030)
#define COMPAT_CPU_68040    (1<<COMPAT_CPUB_68040)
#define COMPAT_CPU_68060    (1<<COMPAT_CPUB_68060)
#define COMPAT_CPU_MASK     (31)
#define COMPAT_FPU_68881    (1<<COMPAT_FPUB_68881)
#define COMPAT_FPU_68882    (1<<COMPAT_FPUB_68882)
#define COMPAT_FPU_68040    (1<<COMPAT_FPUB_68040)
#define COMPAT_FPU_68060    (1<<COMPAT_FPUB_68060)
#define COMPAT_FPU_MASK     (0xfe0)

#define COMPAT_CL_SIZE      (256)

struct compat_bootinfo {
    unsigned long machtype;
    unsigned long cputype;
    struct compat_mem_info memory[COMPAT_NUM_MEMINFO];
    int num_memory;
    unsigned long ramdisk_size;
    unsigned long ramdisk_addr;
    char command_line[COMPAT_CL_SIZE];
    union {
    struct compat_bi_Amiga     bi_ami;
    struct compat_bi_Atari     bi_ata;
    struct compat_bi_Macintosh bi_mac;
    } bi_un;
};

#define bi_amiga    bi_un.bi_ami
#define bi_atari    bi_un.bi_ata
#define bi_mac      bi_un.bi_mac

#endif /* BOOTINFO_COMPAT_1_0 */


#endif /* _M68K_BOOTINFO_H */